Duplex wiper for windshields



sept. 30 1924, 1,510,041l

W. W. CHAMBERLAN DUPLEX wIPER Foa wINDsHIEL l Filed June '7, 1924Patented sept. 3o, 1924.

UNITED STATES WALTER W. CHAMBERLAIN, 0F WATERTOWN, NEW YORK.

f DUPLEX WIPER FOR WINDSHIELDS.

Application ined June 7,

T o all whom t muy concern."

Be it known that I, WALTER W. CHAM-y nRLAiN, a citizen of the UnitedStates, re; siding at Watertown, in the county of vJeferson and Statelof New York, have invented certain new and use-ful Improvements inDuplex Wipers for Windshields, of which the following is aspecification.

This invention relates to duplex wipers for wind-shields of automobilesand the like, and has for its object to provide novel, sirnple andeffective means for/,wiping and cleaning the external surface of thewindshield, during rainy, snowy land dusty A weather. A further objectis to provide spaced duplicate wiping members, which are arranged to beoperated as one part; both of said wipers being pivot/ally supported bythe frame of the wind-shield, and each be ing provided with a crank bywhich eithen the driver of the vehicle, or a passenger who sits besidehim, may readily and conveniently operate the wipers, by a singleoperation. A furtherobject is to provide means for connecting the twinwipers in a manner to effect` identical oscillation of said parts wheneither of said cranks are manip# vplated; it being'a particular .ob-jectof the invention to provide a mechanism of the class, by which thegreater portion of the relativelylong transparent windshield may bewiped and kept clean, thereby affording a clearervision ahead of thevehicle, as well" as towards the opposite sides of the roadway, than ispossible where a-singlewiping element is employed, as heretofore.4 I

I attain these objects by the means set forth in the detaileddescription which folf lows, and as illustrated by the accompanyingdrawing, in which- 'Figure 1 is a broken front side elevation of thetransparent wind-shield, common to automobiles and like vehicles, towhich my improvementI is applied. Fig. 2 is an Ienlarged cross-section,taken on line 2;-2 of Fig. 1. Fig. 3 is a broken front side eleva-Ation; showing one of the wipers andthe ticrod. .And Fig. 4 is a brokenrear-side elevation; Showing one of the cranks by which the two wipersmay be operated.

' ln the drawing, 2 represents the transparent Wind-shield, and 3 is theusual frame by which the shield is supported. A

4 and el represent the wiping members, which are preferably identical,both asv to construction and operation. Each wiper 1924.- Yserial No'.715,543.

consists of the usual relatively thin flexible, rubber or like wipingbrush or part 4a, which is tightly clamped between the folds of a sheetmetal holder 4*. The wiper and holder are directly supported by a clip4, which is pivoted to the holder by a rivet 4d; a portion of saidelipbeing lformed into a sleeve 4", which normally parallels the back4b, and through which' a supporting and operating rod or arm '5 visinserted. The rod 5 is preferably fitted tightly in said sleeve, and hasits lower end bent outwardly at right angles, for providing a threadedstud 5', which receives one of the loopends 6 of the tie-rod 6, thelatter beinglheld in place and allowed considerable swivel action, bymeans ofa nut 5a. The top end of the rocker armv 5 is inserted tightlyin the lower end' of a head or block 5", which'is bored out transverselyto receive the reduced free end 7 .of a rock shaft 7, by which the wiperisioscillated. A set-screw 5 is threaded into the top end of the head5b,and engages the spindle A7', foradjustably holding the head andrelated parts in the proper positions, as shown. The shaft 7 isrotatable in a sleeve-bearing 8, which passes through a transverseopening 3 in the frame; the outer end of said sleevehaving a head 8',whilei its inner end is threaded for receiving a nut 8a, by which thesleeve nay be rigidly clamped to thev frame. The opposite o'r inner endof the shaft 7 is formed with a circular head 7 (1, which is boreddiarnetrically to receive the upper end of a crank 9, the latte;preferably being driven tightly in said bore. The lower end of the rod 9is preferably bent outwardly at right angles, as at 9, and is fittedwith a handknob 9a for manipulating `the crank. The wip-ers 4 4, 'whentied together by means of the rod 6, may be o scillated simultaneouslyby the driver, or by a person occupying the'` same seat, by, si1nplygrasping the 'corresponding crank 9, and then swaying the Same back andforth in a vertical plane, as shown bythe full and dotted lines inFig. 1. The. wipers 4 4 are so constructed and arranged that the greaterportionv of the shield 2 may be wiped and kept clear, as shown bythearc-shaped dotted lines in Fic. 1.

ily duplex wiper is extremely simple and may be constructed andinstalled at slight expense. It is` designed preferably for manualoperation, for supplying a demand for cheaper accessories, but`may beactu- Wind-shield, a tic-rod having its opposite ated b y any of theWell-known power means, ends swivclcd to said outwardly bent por ifdesired. sions for eilecting the oscillation of said 15 Having thusdescribed my invention, arms and brushes as one parl', and crank what Iclaim 1s-' rods carried by sald shafts adapted to be 'A duplexWind-shield Wiper for vehicles, used singly at the option of thedriveror a comprising spaced depending wiper arms, passenger seated beside thedriver for efthe lower ends o1 said arms being bent ou'tfectiugV thesimultaneous oscillation of said 20 Wardly and terminating in a threadedstud, brushes. y wiping brushes mounted on said arms'near In testimonyhereof l ailix my signature. said studs, shafts for pivotal-lysupporting said arms jonrnalled in the frame of the lVALTERlV.CIIAMBICRLAIN.

